December weather forecast
Halfway, MD

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Weather in December

December, the first month of the winter in Halfway, is also a wintry month, with an average temperature fluctuating between 29.7°F (-1.3°C) and 42.3°F (5.7°C).

Temperature

December's arrival comes with a mild decrease in the average high-temperature, moving subtly from a cool 51.1°F (10.6°C) in November to an icy 42.3°F (5.7°C). The average low-temperature during December nights is a freezing cold 29.7°F (-1.3°C).

Humidity

In Halfway, the average relative humidity in December is 78%.

Rainfall

In December, the rain falls for 9.6 days. Throughout December, 1.93" (49mm) of precipitation is accumulated. Throughout the year, in Halfway, there are 152.2 rainfall days, and 26.02" (661mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. In Halfway, in December, snow falls for 3.8 days, with typically accumulated 2.01" (51mm) of snow. In Halfway, during the entire year, snow falls for 20.8 days and aggregates up to 12.56" (319mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:13 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:31 am and sunset at 4:57 pm EST.

Sunshine

In December, the average sunshine is 4.9h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.
Note: During December, 2 as the daily maximum UV index converts into the following advice:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

In Halfway, in December, the average high-temperature is 42.3°F (5.7°C), and the average low-temperature is 29.7°F (-1.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is calculated to be 89.6°F (32°C).

What is the average humidity in December?

The average relative humidity in December is 78%.

How many days does it rain in December?

In Halfway, during December, the rain falls for 9.6 days and regularly aggregates up to 1.93" (49mm) of precipitation.

How many days does it snow in December?

In Halfway, during December, snow falls for 3.8 days and regularly aggregates up to 2.01" (51mm) of snow.

What is the month with the shortest days in Halfway?

The month with the shortest days is December, with an average of 9h and 24min of daylight.

What is the average length of the day in December?

In Halfway, the average day length in December is 9h and 25min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:13 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:57 pm EST.

How long on average sun shines in December?

In Halfway, the average sunshine duration in December is 4.9h.

What are the months with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Halfway, MD

Average temperature in December - Halfway, MD
  • Average high temperature in December: 42.3°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).

  • Average low temperature in December: 29.7°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in December
Halfway, MD

Average pressure in December - Halfway, MD
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Halfway, MD

Average wind speed in December - Halfway, MD
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in December
Halfway, MD

Average humidity in December - Halfway, MD
  • Average humidity in December: 78%

The month with the highest relative humidity is October (79%).
The month with the lowest relative humidity is July (74%).

Average rainfall in December
Halfway, MD

Average rainfall in December - Halfway, MD
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Halfway, MD

Average rainfall days in December - Halfway, MD
  • Average rainfall days in December: 9.6 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is January (8.2 days).

Average snowfall in December
Halfway, MD

Average snowfall in December - Halfway, MD
  • Average snowfall in December: 2.01"

The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Halfway, MD

Average snowfall days in December - Halfway, MD
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Halfway, MD

Average daylight in December / Average sunshine in December - Halfway, MD
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are January and February (Average sunshine: 4h and 48min).

Average sunshine days in December
Halfway, MD

Average sunshine days in December - Halfway, MD
  • Average sunshine days in December: 18.1 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.7 days).

Average UV index in December
Halfway, MD

Average UV index in December - Halfway, MD
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in December
Halfway, MD

Average cloud cover in December - Halfway, MD
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Halfway, MD

Average visibility in December - Halfway, MD
  • Average visibility in December: 6mi

The months with the highest visibility are February, March, April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, May, September and October (5mi).

Halfway, Maryland, USA

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